in changes-patch-builder-test/src/jetbrains/buildServer/vcs/patches/fs/MemoryFileSystemImplTest.java [229:241]
private void checkFileSystem(String[] files, String[] directories) {
Set<String> filesSet = new TreeSet<String>();
Set<String> directoriesSet = new TreeSet<String>();
fs.toCollections(filesSet, directoriesSet);
Set<String> expectedFilesSet = new TreeSet<String>();
Collections.addAll(expectedFilesSet, files);
Set<String> expectedDirectoriesSet = new TreeSet<String>();
Collections.addAll(expectedDirectoriesSet, directories);
assertEquals(expectedFilesSet, filesSet);
assertEquals(expectedDirectoriesSet, directoriesSet);
}